Joy sparks the urge to play, interest sparks the urge to explore, contentment sparks the urge to savor and integrate, and love sparks a recurring cycle of each of these urges within safe, close relationships.

The worse a situation becomes, the less it takes to turn it around, the bigger the upside.

The past is never dead. It's not even past.

我们需要找到方法使能源储存更高效和可持续。

The only thing that separates us from the animals is our ability to accessorize.